EP0257947A3 - Cordless accessed high-speed high-capacity local area networks - Google Patents

Cordless accessed high-speed high-capacity local area networks Download PDF

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Publication number
EP0257947A3
EP0257947A3 EP87307235A EP87307235A EP0257947A3 EP 0257947 A3 EP0257947 A3 EP 0257947A3 EP 87307235 A EP87307235 A EP 87307235A EP 87307235 A EP87307235 A EP 87307235A EP 0257947 A3 EP0257947 A3 EP 0257947A3
Authority
EP
European Patent Office
Prior art keywords
cordless
local area
area networks
accessed
capacity local
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87307235A
Other versions
EP0257947B1 (en
EP0257947A2 (en
Inventor
Noach Amitay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of EP0257947A2 publication Critical patent/EP0257947A2/en
Publication of EP0257947A3 publication Critical patent/EP0257947A3/en
Application granted granted Critical
Publication of EP0257947B1 publication Critical patent/EP0257947B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
EP87307235A 1986-08-25 1987-08-17 Cordless accessed high-speed high-capacity local area networks Expired - Lifetime EP0257947B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/899,647 US4807222A (en) 1986-08-25 1986-08-25 Cordless accessed high-speed high-capacity local area networks
US899647 1986-08-25

Publications (3)

Publication Number Publication Date
EP0257947A2 EP0257947A2 (en) 1988-03-02
EP0257947A3 true EP0257947A3 (en) 1990-05-02
EP0257947B1 EP0257947B1 (en) 1994-03-30

Family

ID=25411341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87307235A Expired - Lifetime EP0257947B1 (en) 1986-08-25 1987-08-17 Cordless accessed high-speed high-capacity local area networks

Country Status (5)

Country Link
US (1) US4807222A (en)
EP (1) EP0257947B1 (en)
JP (1) JPS6360643A (en)
CA (1) CA1270304A (en)
DE (1) DE3789474T2 (en)

Families Citing this family (130)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1290020C (en) * 1987-02-09 1991-10-01 Steven Messenger Wireless local area network
US5682256A (en) * 1988-11-11 1997-10-28 British Telecommunications Public Limited Company Communications system
JPH02162857A (en) * 1988-12-15 1990-06-22 Hamamatsu Photonics Kk Communication method using light and radio wave
US4979231A (en) * 1989-01-06 1990-12-18 Motorola, Inc. Two-way radio for use in a communication system
US6614768B1 (en) 1989-04-28 2003-09-02 Broadcom Corporation Enhanced mobility and address resolution in a wireless premises based network
US5159695A (en) * 1989-05-30 1992-10-27 Motorola, Inc. Communication system to communication system communication system
US5860136A (en) * 1989-06-16 1999-01-12 Fenner; Peter R. Method and apparatus for use of associated memory with large key spaces
GB8913931D0 (en) * 1989-06-16 1989-08-02 Ferranti Creditphone Cordless pbx
US5142550A (en) * 1989-06-29 1992-08-25 Symbol Technologies, Inc. Packet data communication system
US5022047A (en) * 1989-08-07 1991-06-04 Omnipoint Data Corporation Spread spectrum correlator
US5499265A (en) * 1989-08-07 1996-03-12 Omnipoint Data Company, Incorporated Spread spectrum correlator
US5016255A (en) * 1989-08-07 1991-05-14 Omnipoint Data Company, Incorporated Asymmetric spread spectrum correlator
US5477541A (en) * 1989-09-29 1995-12-19 White; Richard E. Addressing technique for storing and referencing packet data
US5495482A (en) * 1989-09-29 1996-02-27 Motorola Inc. Packet transmission system and method utilizing both a data bus and dedicated control lines
US5166932A (en) * 1990-04-27 1992-11-24 Seiko Corp. Wireless facsimile computer slate
US5253268A (en) * 1990-05-24 1993-10-12 Cylink Corporation Method and apparatus for the correlation of sample bits of spread spectrum radio signals
US5166952A (en) * 1990-05-24 1992-11-24 Cylink Corporation Method and apparatus for the reception and demodulation of spread spectrum radio signals
US5157686A (en) * 1990-05-24 1992-10-20 Cylink Corporation Method and apparatus for the modulation of spread spectrum radio signals
EP0540664A4 (en) * 1990-07-23 1993-06-09 Omnipoint Corporation Sawc phase-detection method and apparatus
US5081642A (en) * 1990-08-06 1992-01-14 Omnipoint Data Company, Incorporated Reciprocal saw correlator method and apparatus
GB9019488D0 (en) * 1990-09-06 1990-10-24 Ncr Co Local area network having a wireless transmission link
WO1992007434A1 (en) * 1990-10-23 1992-04-30 Omnipoint Corporation Method and apparatus for establishing spread spectrum communications
JP2511591B2 (en) * 1990-10-29 1996-06-26 インターナショナル・ビジネス・マシーンズ・コーポレイション Wireless optical communication system operating method and optical communication system
US5212806A (en) * 1990-10-29 1993-05-18 International Business Machines Corporation Distributed control methods for management of migrating data stations in a wireless communications network
US5917629A (en) * 1990-10-29 1999-06-29 International Business Machines Corporation Transceiver for extending a CSMA/CD network for wireless communication
US5181200A (en) * 1990-10-29 1993-01-19 International Business Machines Corporation Handoff method and apparatus for mobile wireless workstation
JP2500963B2 (en) 1990-10-29 1996-05-29 インターナショナル・ビジネス・マシーンズ・コーポレイション Two-way information communication method
US5274841A (en) * 1990-10-29 1993-12-28 International Business Machines Corporation Methods for polling mobile users in a multiple cell wireless network
US5068916A (en) * 1990-10-29 1991-11-26 International Business Machines Corporation Coordination of wireless medium among a plurality of base stations
US5239673A (en) * 1990-10-29 1993-08-24 International Business Machines Corporation Scheduling methods for efficient frequency reuse in a multi-cell wireless network served by a wired local area network
US5159592A (en) * 1990-10-29 1992-10-27 International Business Machines Corporation Network address management for a wired network supporting wireless communication to a plurality of mobile users
US6873643B2 (en) * 1990-11-16 2005-03-29 Interdigital Technology Corporation Spread spectrum adaptive power control communications system and method
US5299226A (en) * 1990-11-16 1994-03-29 Interdigital Technology Corporation Adaptive power control for a spread spectrum communications system and method
US5535238A (en) 1990-11-16 1996-07-09 Interdigital Technology Corporation Spread spectrum adaptive power control communications system and method
US7020125B2 (en) * 1990-12-05 2006-03-28 Interdigital Technology Corporation Broadband CDMA overlay system and method
US5185762A (en) * 1991-05-15 1993-02-09 Scs Mobilecom, Inc. Spread spectrum microwave overlay with notch filter
US5506864A (en) * 1990-12-05 1996-04-09 Interdigital Technology Corporation CDMA communications and geolocation system and method
US5263045A (en) * 1990-12-05 1993-11-16 Interdigital Technology Corporation Spread spectrum conference call system and method
US5351269A (en) * 1990-12-05 1994-09-27 Scs Mobilecom, Inc. Overlaying spread spectrum CDMA personal communications system
US5228056A (en) * 1990-12-14 1993-07-13 Interdigital Technology Corporation Synchronous spread-spectrum communications system and method
US5161168A (en) * 1991-05-15 1992-11-03 Scs Mobilecom, Inc. Spread spectrum CDMA communications system microwave overlay
US5703874A (en) * 1990-12-05 1997-12-30 Interdigital Technology Corporation Broadband CDMA overlay system and method
US5274665A (en) * 1990-12-14 1993-12-28 Interdigital Technology Corporation Polyopoly overlapping spread spectrum communication system and method
CA2054591C (en) * 1991-02-28 1996-09-03 Giovanni Vannucci Wireless telecommunication systems
US5402413A (en) * 1991-04-08 1995-03-28 Omnipoint Corporation Three-cell wireless communication system
US5887020A (en) * 1991-05-13 1999-03-23 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5694414A (en) * 1991-05-13 1997-12-02 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US6714559B1 (en) * 1991-12-04 2004-03-30 Broadcom Corporation Redundant radio frequency network having a roaming terminal communication protocol
US5796772A (en) * 1991-05-13 1998-08-18 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
AU2140092A (en) * 1991-05-13 1992-12-30 Omnipoint Corporation Dual mode transmitter and receiver
US5790587A (en) * 1991-05-13 1998-08-04 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5815525A (en) * 1991-05-13 1998-09-29 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5166951A (en) * 1991-05-15 1992-11-24 Scs Mobilecom, Inc. High capacity spread spectrum channel
USRE38627E1 (en) * 1991-05-15 2004-10-19 Interdigital Technology Corp. High capacity spread spectrum channel
US5228053A (en) * 1991-05-15 1993-07-13 Interdigital Technology Corporation Spread spectrum cellular overlay CDMA communications system
US5235615A (en) * 1991-05-22 1993-08-10 Cylink Corporation Spread spectrum method
US5285469A (en) * 1991-06-03 1994-02-08 Omnipoint Data Corporation Spread spectrum wireless telephone system
US5345467A (en) * 1991-07-10 1994-09-06 Interdigital Technology Corp. CDMA cellular hand-off apparatus and method
US5463623A (en) * 1991-07-31 1995-10-31 At&T Ipm Corp. Integrated wireless telecommunication and local area network system
IT1250515B (en) * 1991-10-07 1995-04-08 Sixtel Spa NETWORK FOR LOCAL AREA WITHOUT WIRES.
JP2897492B2 (en) * 1991-10-24 1999-05-31 日本電気株式会社 Mobile communication device
IE922611A1 (en) * 1991-10-30 1993-05-05 Motorola Inc Method for data collision detection in a multi processor¹communication system
US5210753A (en) * 1991-10-31 1993-05-11 International Business Machines Corporation Robust scheduling mechanm for efficient band-width usage in muliticell wireless local networks
EP0617864B1 (en) * 1991-12-16 2002-02-27 XIRCOM Wireless, Inc. Spread-spectrum data publishing system
US5442633A (en) * 1992-07-08 1995-08-15 International Business Machines Corporation Shortcut network layer routing for mobile hosts
GB9217374D0 (en) * 1992-08-14 1992-09-30 Ncr Int Inc Wireless local area network transmission system
DE4232481A1 (en) * 1992-09-28 1993-11-25 Siemens Ag Cordless communication arrangement with mobile end devices - has both first transmitter receiver apparatus and mobile end devices having cordless telephone standard procedure realising components
US5355389A (en) * 1993-01-13 1994-10-11 Omnipoint Corporation Reciprocal mode saw correlator method and apparatus
US5796727A (en) * 1993-04-30 1998-08-18 International Business Machines Corporation Wide-area wireless lan access
US5774738A (en) * 1993-05-03 1998-06-30 Texas Instruments Incorporated State machines
US6970434B1 (en) * 1995-06-07 2005-11-29 Broadcom Corporation Hierarchical communication system providing intelligent data, program and processing migration
US5696903A (en) * 1993-05-11 1997-12-09 Norand Corporation Hierarchical communications system using microlink, data rate switching, frequency hopping and vehicular local area networking
IL105990A (en) * 1993-06-11 1997-04-15 Uri Segev And Benjamin Machnes Infra-red communication system
WO1995001020A1 (en) * 1993-06-25 1995-01-05 Xircom, Incorporated Virtual carrier detection for wireless local area network with distributed control
JP2502468B2 (en) * 1993-09-30 1996-05-29 インターナショナル・ビジネス・マシーンズ・コーポレイション Communication control method for a local wireless communication system having a plurality of wireless mobile stations
US5666379A (en) * 1993-11-01 1997-09-09 Omnipoint Corporation Best-of-M pulse position modulation detector
US5436941A (en) * 1993-11-01 1995-07-25 Omnipoint Corporation Spread spectrum spectral density techniques
US6005856A (en) * 1993-11-01 1999-12-21 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
US5654978A (en) * 1993-11-01 1997-08-05 Omnipoint Corporation Pulse position modulation with spread spectrum
US6088590A (en) * 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US6094575A (en) * 1993-11-01 2000-07-25 Omnipoint Corporation Communication system and method
WO1995012945A1 (en) * 1993-11-01 1995-05-11 Omnipoint Corporation Despreading/demodulating direct sequence spread spectrum signals
US5699353A (en) * 1993-11-24 1997-12-16 Ericsson Ge Mobile Communications, Inc. Extended trunked RF communications systems networking
FR2713421B1 (en) * 1993-12-06 1996-01-19 Alcatel Business Systems Local radio transmission network.
US5553074A (en) * 1994-03-04 1996-09-03 Trustees Of Columbia University In The City Of New York Transmission format in packet based communications
JPH07264177A (en) * 1994-03-25 1995-10-13 Matsushita Electric Ind Co Ltd Parallel signal optical transmission system
US5648982A (en) * 1994-09-09 1997-07-15 Omnipoint Corporation Spread spectrum transmitter
US5953370A (en) 1994-09-09 1999-09-14 Omnipoint Corporation Apparatus for receiving and correlating a spread spectrum signal
US5627856A (en) * 1994-09-09 1997-05-06 Omnipoint Corporation Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators
US5832028A (en) * 1994-09-09 1998-11-03 Omnipoint Corporation Method and apparatus for coherent serial correlation of a spread spectrum signal
US5680414A (en) * 1994-09-09 1997-10-21 Omnipoint Corporation Synchronization apparatus and method for spread spectrum receiver
US5610940A (en) * 1994-09-09 1997-03-11 Omnipoint Corporation Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal
US5963586A (en) * 1994-09-09 1999-10-05 Omnipoint Corporation Method and apparatus for parallel noncoherent correlation of a spread spectrum signal
US5881100A (en) * 1994-09-09 1999-03-09 Omnipoint Corporation Method and apparatus for coherent correlation of a spread spectrum signal
US5754584A (en) * 1994-09-09 1998-05-19 Omnipoint Corporation Non-coherent spread-spectrum continuous-phase modulation communication system
US5692007A (en) * 1994-09-09 1997-11-25 Omnipoint Corporation Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuous-phase modulation
US5757847A (en) * 1994-09-09 1998-05-26 Omnipoint Corporation Method and apparatus for decoding a phase encoded signal
US5856998A (en) * 1994-09-09 1999-01-05 Omnipoint Corporation Method and apparatus for correlating a continuous phase modulated spread spectrum signal
US5629956A (en) * 1994-09-09 1997-05-13 Omnipoint Corporation Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal
US5659574A (en) * 1994-09-09 1997-08-19 Omnipoint Corporation Multi-bit correlation of continuous phase modulated signals
US5754585A (en) * 1994-09-09 1998-05-19 Omnipoint Corporation Method and apparatus for serial noncoherent correlation of a spread spectrum signal
US5742583A (en) 1994-11-03 1998-04-21 Omnipoint Corporation Antenna diversity techniques
US5657326A (en) * 1994-12-20 1997-08-12 3Com Corporation Radio based collision detection for wireless communication system
US5745479A (en) * 1995-02-24 1998-04-28 3Com Corporation Error detection in a wireless LAN environment
US9191117B2 (en) * 1995-05-11 2015-11-17 Ciena Corporation High-speed optical transponder systems
US5959980A (en) 1995-06-05 1999-09-28 Omnipoint Corporation Timing adjustment control for efficient time division duplex communication
US5689502A (en) * 1995-06-05 1997-11-18 Omnipoint Corporation Efficient frequency division duplex communication system with interleaved format and timing adjustment control
US5745484A (en) 1995-06-05 1998-04-28 Omnipoint Corporation Efficient communication system using time division multiplexing and timing adjustment control
US5802046A (en) * 1995-06-05 1998-09-01 Omnipoint Corporation Efficient time division duplex communication system with interleaved format and timing adjustment control
US6041046A (en) * 1995-07-14 2000-03-21 Omnipoint Corporation Cyclic time hopping in time division multiple access communication system
US6300880B1 (en) * 1996-01-16 2001-10-09 Philips Electronics North America Corp. Multichannel audio distribution system having portable receivers
EP0820671A1 (en) * 1996-02-12 1998-01-28 Hewlett-Packard Company Signal transmission between networked computers
US5880863A (en) * 1996-02-13 1999-03-09 Gte Laboratories Incorporated Reconfigurable ring system for the transport of RF signals over optical fibers
US6002664A (en) * 1997-02-24 1999-12-14 At&T Wireless Services Inc. Method to gain access to a base station in a discrete multitone spread spectrum communications system
US6081356A (en) * 1997-05-27 2000-06-27 Steelcase Development Inc. Integrated optical ports
US6868237B2 (en) 1998-04-24 2005-03-15 Lightpointe Communications, Inc. Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links
US6239888B1 (en) 1998-04-24 2001-05-29 Lightpointe Communications, Inc. Terrestrial optical communication network of integrated fiber and free-space links which requires no electro-optical conversion between links
US6298047B1 (en) 1998-05-20 2001-10-02 Steelcase Development Inc. Method and apparatus for establishing a data link between a portable data communications device and an interface circuit
US6359711B1 (en) 1998-05-20 2002-03-19 Steelcase Development Corporation System and method for supporting a worker in a distributed work environment
US6337856B1 (en) 1998-05-20 2002-01-08 Steelcase Development Corporation Multimedia data communications system
US6947469B2 (en) 1999-05-07 2005-09-20 Intel Corporation Method and Apparatus for wireless spread spectrum communication with preamble processing period
SG109407A1 (en) * 1999-05-28 2005-03-30 Kent Ridge Digital Labs Wireless communications link
US20040165890A1 (en) * 1999-11-08 2004-08-26 Throughput Holdings, Inc. Wide-signal bandwidth multi-access channel
US6763195B1 (en) 2000-01-13 2004-07-13 Lightpointe Communications, Inc. Hybrid wireless optical and radio frequency communication link
US6889009B2 (en) * 2001-04-16 2005-05-03 Lightpointe Communications, Inc. Integrated environmental control and management system for free-space optical communication systems
US20020171896A1 (en) * 2001-05-21 2002-11-21 Lightpointe Communications, Inc. Free-space optical communication system employing wavelength conversion
US20030090765A1 (en) * 2001-11-09 2003-05-15 Neff Brian W. Free-space optical communication system
US20060140642A1 (en) * 2004-12-29 2006-06-29 Brolin Stephen J Eliminating ONU laser for WDM PON by burst mode
US8233802B2 (en) * 2009-12-31 2012-07-31 At&T Intellectual Property I, L.P. Portable infrared control liaison
KR101630215B1 (en) 2012-02-10 2016-06-14 엠파이어 테크놀로지 디벨롭먼트 엘엘씨 Data transmisson in cloud-based system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402090A (en) * 1980-12-23 1983-08-30 International Business Machines Corp. Communication system in which data are transferred between terminal stations and satellite stations by infrared signals

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5148845B2 (en) * 1971-11-08 1976-12-23
US4291197A (en) * 1978-05-31 1981-09-22 Maruyoshi Sangyo Kabushiki Kaisha Remote telephone system
JPS56122253A (en) * 1980-02-29 1981-09-25 Nec Corp Signal transmission system
US4503533A (en) * 1981-08-20 1985-03-05 Stanford University Local area communication network utilizing a round robin access scheme with improved channel utilization
NL8104104A (en) * 1981-09-04 1983-04-05 Philips Nv DISTRIBUTION SYSTEM FOR A LOCAL FIBERNET.
JPS5954347A (en) * 1982-09-22 1984-03-29 Fujitsu Ltd System for adjusting timing of channel insertion
US4574284A (en) * 1983-01-26 1986-03-04 Trw Inc. Communication bus interface unit
IT1179081B (en) * 1984-08-28 1987-09-16 Cselt Centro Studi Lab Telecom INTEGRATED BROADBAND COMMUNICATION SYSTEM IN THE LOCAL AREA
US4665519A (en) * 1985-11-04 1987-05-12 Electronic Systems Technology, Inc. Wireless computer modem

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402090A (en) * 1980-12-23 1983-08-30 International Business Machines Corp. Communication system in which data are transferred between terminal stations and satellite stations by infrared signals

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS INTEGRATING COMMUNICATION FOR WORLD PROGRESS, Boston, Massachusetts, 19th - 22nd June 1983, pages 754-759, IEEE, New York, US; L. MERAKOS et al.: "Multiaccess of a slotted channel using a control mini-slot" *
PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATION, Sydney, 30th October - 2nd November 1984, pages 333-338, ICCC; Y. NAKATA et al.: "In-house wireless communication system using infrared radiation" *

Also Published As

Publication number Publication date
JPS6360643A (en) 1988-03-16
DE3789474D1 (en) 1994-05-05
DE3789474T2 (en) 1994-07-14
EP0257947B1 (en) 1994-03-30
US4807222A (en) 1989-02-21
EP0257947A2 (en) 1988-03-02
CA1270304A (en) 1990-06-12
JPH0547142B2 (en) 1993-07-15

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